OSPF 면접 질문과 답변
Ques 1. What does OSPF stand for?
Open Shortest Path First
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Ques 2. Explain the OSPF area types.
OSPF supports different area types, including backbone area (Area 0), regular areas, stub areas, totally stubby areas, and not-so-stubby areas (NSSA).
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Ques 3. How does OSPF prevent routing loops?
OSPF uses the Dijkstra algorithm to calculate the shortest path tree, and it avoids routing loops by using the concept of a designated router (DR) on multi-access networks.
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Ques 4. What is the purpose of the OSPF hello packets?
Hello packets are used for neighbor discovery and to establish and maintain adjacencies between OSPF routers.
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Ques 5. Explain the OSPF LSDB (Link State Database).
The LSDB contains information about the network's topology, represented as link-state advertisements (LSAs). Routers use this database to calculate the SPF tree.
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